In Effective JavaScript, long-time JavaScript standards committee insider David Herman introduces 30 powerful ways to write more efficient and more robust software with the latest version of JavaScript. Utilizing the concise, scenario-driven style pioneered by Scott Meyers in his best-selling Effective C++, Herman brings together tips, techniques, shortcuts, and realistic code examples available in no other book. Drawing on his profound understanding of JavaScript's design, history, strengths, and weaknesses, Herman focuses on capturing JavaScript's full expressive power. Developers will learn how to: * Utilize little-known best practices for coding and moving code into production * Choose the right JavaScript programming style for each project, and manage the tradeoffs associated with them * Avoid JavaScript's "sharp corners," including problems that can compromise portability * Master JavaScript's prototype-based object-oriented semantics - and avoiding common misconceptions that cause problems * Understand the subtleties and challenges associated with arrays and associative maps * Use JavaScript functions more expressively * Make the most of JavaScript's lexical scoping * Write more scalable, modular applications with high-quality interfaces * And much more